MESON Chess Problem Database

Problem Display
PID: 59402 (6Kb/3pN3/6R1/1N6/3PkP2/4pR2/2P1P3/2Br1n2 w - - 0 1)

Onkoud, Abdelaziz

Die Schwalbe, 2005

6Kb/3pN3/6R1/1N6/3PkP2/4pR2/2P1P3/2Br1n2

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.cxd3#
    • 1...Rxd4
      • 2.Sc3#
    • 1...Bxd4
      • 2.Sd6#
  • Tries
    • 1.Bb2?
      • threat
        • 2.Sd6#
      • 1...Rxd4
        • 2.Sc3#
      • 1...d6
        • 2.Sxd6#
      • 1...Be5!
    • 1.Bxe3?
      • threat
        • 2.Sc3#
        • 2.Sd6#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Bxd4
        • 2.Sd6#
      • 1...Rd3
        • 2.Sd6#
        • 2.cxd3#
      • 1...Be5
        • 2.Sc3#
      • 1...d6
        • 2.Sc3#
        • 2.Sxd6#
      • 1...Sxe3!
    • 1.Rd6?
      • threat
        • 2.Sc3#
      • 1...Rd3
        • 2.cxd3#
      • 1...Bxd4!
    • 1.Re6+?
      • 1...Be5
        • 2.Rxe5#
      • 1...dxe6!
  • Keys
    • 1.Rg4!
      • threat
        • 2.f5#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Bxd4
        • 2.Sd6#
      • 1...Be5
        • 2.fxe5#
      • 1...Sh2
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE::P(B),XR(a)
    • R(a);SBLOCK,XP(E)::S(G)
    • B(f);SBLOCK,XP(E)::S(G)
  • Tries
    • Try
      • B(A);
      • Threat
        • S(G)
      • Vars
        • R(a);SBLOCK,XP(E)::S(G)
        • P(e);::S(G),XP(e)
      • Refutation
        • B(f);
    • Try
      • B(A);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(E)::S(G)
        • B(f);XP(E)::S(G)
        • B(f);::S(G)
      • Refutation
        • S(b);XB(A)
    • Try
      • R(H);
      • Threat
        • S(G)
      • Vars
        • R(a);OGATE::P(B),XR(a)
      • Refutation
        • B(f);XP(E)
    • Try
      • R(H);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(H),XB(f)
      • Refutation
        • P(e);XR(H)
  • Actual
    • R(H);
    • Threat
      • R(H)+P(F)
    • Vars
      • R(a);SBLOCK,XP(E)::S(G)
      • B(f);SBLOCK,XP(E)::S(G)
      • B(f);OGATE::R(H)+P(F),XB(f)
      • S(b);N_GUARD::R1(D),XP(c)
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